62.79% is the change from 86 to 140
Calculation steps:
[( 140 - 86 ) ÷ 86] x 100 = 62.79%
Formula
Percentage change = [(140 - 86) / 86] x 100
Subtract the new number by the original number
140 - 86 = 54
54 ÷ 86 = 0.627906976744186
0.627906976744186 x 100 = 62.79%